[HAM] Percussion Trigger

David Anderson thermionic27609 at earthlink.net
Sun Jan 27 18:24:27 CST 2008


Jordan,

What that means is that there is still a short somewhere between  
Terminal K and the 1' drawbar wire. Remember that a different wire is  
connected to that drawbar with percussion on!

I recently cleared a percussion short using a car battery charger.  
I've tried the battery flashing method with mixed results. My thought  
was that a battery, with its own internal resistance, may not be able  
to supply enough instantaneous current to burn up the dendrite  
thoroughly. It worked and has stayed fixed so far.

I think some of the supposed risks of flashing are exaggerated. 12V  
isn't going to hurt the preamp at Terminal K. If no keys or presets  
are down, the triggering voltage shouldn't be able to get to the  
busbars, etc...

You could also just try wiggling wires around to see if one got its  
insulation nicked at some point and is shorting.

This problem seems to be becoming more common, or at least more  
people are posting about it. Are the dendrites gaining on us?

David

On Jan 27, 2008, at 6:49 PM, Jordan Kersten wrote:

>
> I'm getting 33v on the "K" terminal with the percussion "off" And  
> about 1 volt when it is on.  There is no short in the busbar  
> because my 1' drawbar functions as it should.
>
>



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